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author | jack <[email protected]> | 2024-06-14 13:13:15 -0600 |
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committer | jack <[email protected]> | 2024-06-14 13:13:15 -0600 |
commit | d343a3b18dbaca9297d4f7b2280c4a16f0a5c8aa (patch) | |
tree | 96df922dae2a5073d9a50ea70c7aae6aa37e3ebe /ways_to_paint_nx3_grid.cpp | |
download | leetcode-d343a3b18dbaca9297d4f7b2280c4a16f0a5c8aa.tar.gz leetcode-d343a3b18dbaca9297d4f7b2280c4a16f0a5c8aa.zip |
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Diffstat (limited to 'ways_to_paint_nx3_grid.cpp')
-rw-r--r-- | ways_to_paint_nx3_grid.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/ways_to_paint_nx3_grid.cpp b/ways_to_paint_nx3_grid.cpp new file mode 100644 index 0000000..b661af8 --- /dev/null +++ b/ways_to_paint_nx3_grid.cpp @@ -0,0 +1,20 @@ +#include "leetcode.h" + +class Solution { +public: + int numOfWays(int n) { + long a = 6, b = 6, c, d, mod = 1e9 + 7; + for (int i = 1; i < n; ++i) { + c = a * 3 + b * 2; + d = a * 2 + b * 2; + a = c % mod; + b = d % mod; + } + return (a + b) % mod; + } +}; + +int main() { + Solution obj; + cout << obj.numOfWays(1); +} |